Omron E5C series, Руководство пользователя

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5 Advanced Operations
E5@C Digital Temperature Controllers User’s Manual (H174)
5-2 Set
tin
g Scalin
g Up
per an
d L
o
w
er Lim
its f
o
r An
alog
Inp
u
ts
5
5-2 Setting Scaling Upper and Lower
Limits for Analog Inputs
z
Analog Input
• When an analog input is selected, scaling can be performed as needed by the
control application.
• Scaling is set in the Scaling Upper Limit, Scaling Lower Limit, and Decimal
Point parameters (Initial Setting Level). These parameters cannot be used
when a temperature input is selected.
• The Scaling Upper Limit parameter sets the physical quantity to be expressed
by the upper limit value of input, and the Scaling Lower Limit parameter sets
the physical quantity to be expressed by the lower-limit value of input. The
Decimal Point parameter specifies the number of digits below the decimal
point.
• The following figure shows a scaling example for a 4 to 20 mA input.
After scaling, the temperature can be directly read. Here, one place below the
decimal point is set.
In this example scaling is set to display 4 to 20 mA as 10.0% to 95.0%.
Operating Procedure
• Setting the Input Type
1
Move to the Initial Setting Level.
in-t
(Input Type) will be dis-
played.
Initial Setting Level
2
Press the
U
or
D
Key to set the value to 25.
The default is 5.
• Setting the Scaling Upper Limit
1
Press the
M
Key several times in the Initial Setting Level to
display
in-h
(Scaling Upper Limit).
Initial Setting Level
2
Press the
U
or
D
Key to set the value to 950.
The default is 100.
in-h
in-l
dp
Scaling Upper
Limit
Scaling Lower
Limit
Decimal Point
4
20
Display
(temperature)
Upper limit (95.0%)
Lower limit (10.0%)
Input (mA)
5
in-t
Input Type
25
in-t
100
in-h
Scaling Upper
Limit
950
in-h